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WD_BLACK SN850x NVMe SSD 8TB

Wow $600 for 8TB of high end nvme is showing where things are heading. Now bring on the 16TB chewing gum sticks! :)
 
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$600 dayum. I got my Sabrent 8TB almost a year and a half ago for $999. Now that same model is $1100. It's odd: the plain stick is $1200, the version that comes with the Heatsink is $1100.

Google says:
The Sabrent Rocket 4 Plus is based on BiCS5, while the WD Black SN850X uses TLC flash.

Great, now I need to find out what BiCS5 is.

The WD drive is a little faster:
WD Black SN850X 8TBSabrent Rocket 4 Plus 8TB
Sequential read7,200 MB/s7,000 MB/s
Sequential write6,600 MB/s6,000 MB/s
Random read1,200KUp to 700K
Random write1,200KUp to 1,000K

He compares the 2: But chances are, based on the new price, the WD would be the goto choice. EDIT: This video is a few years old, might be talking about the 4Tb WD which has different performance characteristics. Looking for better reviews...

View: https://www.youtube.com/watch?v=OIyixTGFyuM
 
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GoodBoy said:
$600 dayum. I got my Sabrent 8TB almost a year and a half ago for $999. Now that same model is $1100. It's odd: the plain stick is $1200, the version that comes with the Heatsink is $1100.

Google says:
The Sabrent Rocket 4 Plus is based on BiCS5, while the WD Black SN850X uses TLC flash.

Great, now I need to find out what BiCS5 is.

The WD drive is a little faster:
WD Black SN850X 8TBSabrent Rocket 4 Plus 8TB
Sequential read7,200 MB/s7,000 MB/s
Sequential write6,600 MB/s6,000 MB/s
Random read1,200KUp to 700K
Random write1,200KUp to 1,000K

He compares the 2: But chances are, based on the new price, the WD would be the goto choice. EDIT: This video is a few years old, might be talking about the 4Tb WD which has different performance characteristics. Looking for better reviews...

View: https://www.youtube.com/watch?v=OIyixTGFyuM
Click to expand...

There aren't many reviews out for the 8TB SN850X. I looked into it prior to snagging two for $550 each during that sale on their direct Sandisk website. The good news is, unlike many other drives that lose a chunk of performance with the extra NAND, these drives only saw ~100MB/s drop for the read speeds (thanks to the newer BiCS6 NAND and slightly upgraded controller) compared to the 4TB SN850X version (that has BiCS5 NAND) is what I pulled out of the two reviews that I found:

https://www.tomshardware.com/pc-com...8tb-ssd-review-the-no-compromise-8tb-champion

https://www.tweaktown.com/reviews/1...-ssd-the-new-king-of-high-capacity/index.html

EDIT - what really impressed me was the sustained write performance that didn't drop even after 2.5 minutes of writes
1731951077204.png
 
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GoodBoy said:
$600 dayum. I got my Sabrent 8TB almost a year and a half ago for $999. Now that same model is $1100. It's odd: the plain stick is $1200, the version that comes with the Heatsink is $1100.

Google says:
The Sabrent Rocket 4 Plus is based on BiCS5, while the WD Black SN850X uses TLC flash.

Great, now I need to find out what BiCS5 is.

The WD drive is a little faster:
WD Black SN850X 8TBSabrent Rocket 4 Plus 8TB
Sequential read7,200 MB/s7,000 MB/s
Sequential write6,600 MB/s6,000 MB/s
Random read1,200KUp to 700K
Random write1,200KUp to 1,000K

He compares the 2: But chances are, based on the new price, the WD would be the goto choice. EDIT: This video is a few years old, might be talking about the 4Tb WD which has different performance characteristics. Looking for better reviews...

View: https://www.youtube.com/watch?v=OIyixTGFyuM
Click to expand...


Random reads are what matters for most app loading times. Being 80% better is not "a little".
 
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arestavo said:
There aren't many reviews out for the 8TB SN850X. I looked into it prior to snagging two for $550 each during that sale on their direct Sandisk website. The good news is, unlike many other drives that lose a chunk of performance with the extra NAND, these drives only saw ~100MB/s drop for the read speeds (thanks to the newer BiCS6 NAND and slightly upgraded controller) compared to the 4TB SN850X version (that has BiCS5 NAND) is what I pulled out of the two reviews that I found:

https://www.tomshardware.com/pc-com...8tb-ssd-review-the-no-compromise-8tb-champion

https://www.tweaktown.com/reviews/1...-ssd-the-new-king-of-high-capacity/index.html

EDIT - what really impressed me was the sustained write performance that didn't drop even after 2.5 minutes of writes View attachment 692337
Click to expand...
uOpt said:
Random reads are what matters for most app loading times. Being 80% better is not "a little".
Click to expand...
What’s the bad news?
 
Does anyone have one of these that can run a CrystalDiskMark bench on it?
 
arestavo said:
Did you select NVMe SSD under that settings drop down? I upgraded to 8.0.5 and got results within the margin of error compared to my 8.0.4 results.
Click to expand...
ok the NVMe SSD selection helped, thank you

1731961775798.png
 
arestavo said:
Here are both of mine with stuff already on it with NVME SSD selected under settings (sorry, didn't get an empty test):
View attachment 692360
Click to expand...
Thanks. Could you change 2 settings and re-run the test?
Click Settings, then select the nvme SSD option, then click Profile and select Real World Performance:
1731985989907.png



This is what I got on my 83% full 8TB Sabrent Rocket 4 Plus:
1731986049149.png
 
GoodBoy said:
Thanks. Could you change 2 settings and re-run the test?
Click Settings, then select the nvme SSD option, then click Profile and select Real World Performance:
View attachment 692447


This is what I got on my 83% full 8TB Sabrent Rocket 4 Plus:
View attachment 692448
Click to expand...
My results were already set for NVMe SSD in the software.

Here's several different runs with Real World Performance set with one of the drives filled to 35, 68, and 82%:

1731996627399.png



EDIT - and here's it at 86% filled:
1731997802430.png
 
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Nice data, thanks. Probably adding that to my homeserver next year or so.

My gaming rig is fine with 4TB for the foreseeable future.
 
So I bit at that price point, lol. Got a couple days of backing things up and rebuilding the NAS enclosure, but excited to see what these do.

It appears that I have misplaced my 16x 1U pcie riser, so a new one is on its way.
 
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I also picked one up - moved all of my photos onto it. Editing RAWs is noticeably faster than when I had them on SATA 870 EVO 4TBs.
 
I'm currently on a 4TB SN850X and recently found out that the 8TB model is out.
I think at this point I'm going to wait for WD (or Samsung) to come out with a gen5 8TB before I upgrade again. Probably a few years down the road though.
 
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chameleoneel said:
Windows loads noticeably faster on a decent PCIe drive, compared to SATA. Let alone everything else.
Click to expand...
Yeah, friend of mine called and insisted his all in one (Win10) was infected.
It was so slow, HDD (5400 RPM WD Green WTF!) was pegged at 99% from updates daemon.
Imaged that to a Crucial 1TB SATA SSD which took nearly 7 hours in Reflection.
After cleaning up, etc. it was like a new system.
No malware either outside of usual junk.
 
Rebuilding my Plex server at >1GBps, whoooo (network limited due to 10GbE on the backup source even though the server has LAGG). This is primarily for other containers, but Plex is getting the collateral benefits.

1000009076.jpg
 
Interesting, the 8TB doesn’t have DRAM like the smaller capacities?
 
EnderW said:
Interesting, the 8TB doesn’t have DRAM like the smaller capacities?
Click to expand...
Not sure. I see conflicting reports. Some say it does while other say it has HMB. I don't see why it would not be using DRAM.
 
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EnderW said:
Interesting, the 8TB doesn’t have DRAM like the smaller capacities?
Click to expand...
vegeta535 said:
Not sure. I see conflicting reports. Some say it does while other say it has HMB. I don't see why it would not be using DRAM.
Click to expand...
arestavo said:
The 1, 2, and 4TB version show as having a controller with DRAM enabled, so I'd wager that the 8TB does as well.

EDIT - I can totally search databases properly... So, here is the 8TB SN850X version that shows it having a DRAM cache.
Click to expand...
My friend in discord reached out and got a response, KarateBob

1734113175779.png

1734113218727.png

1734113251529.png
 
Picked up the 4 TB for Christmas I should have it tomorrow I'm hoping to get my entire Steam Collection on there.
8 TB would be nice but it failed would be in a world of hurt.
 
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